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Finding the Fourth Proportional to 215,832.40, 323,748.60 and 202,699.60

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Solution

The fourth proportional to 215,832.40, 323,748.60 and 202,699.60 is: 304,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,832.40 : 323,748.60 = 202,699.60 : x
  2. Step 2: Convert to fraction form
    215,832.40/323,748.60 = 202,699.60/x
  3. Step 3: Cross multiply
    215,832.40x = 323,748.60 × 202,699.60
  4. Step 4: Simplify right side
    215,832.40x = 65,623,711,720.56
  5. Step 5: Solve for x
    x = 65,623,711,720.56/215,832.40
  6. Step 6: Final answer
    x = 304,049.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.